Valve for grease dispensers



Marh Z, 1943. 5. J. GOLDWATER' 2,312,832

VALVE FOR GREASE DISPENSERS Filed Sept. 22, 1941 4 INVENTOR.

Patented Mar. 2, 1943 'UN liT E1 STAT TS.

TENT operas:

6 Claims:

This invention relates to valves for grease disr pensers and it is one object of the invention to."

provide an improved form of standing valve so mounted in the dispenser pump that it may be easily applied andsupported in a normally: closed position, the standing valve being moved" to open position by suction as the piston of the pump is moved upwardly and returned to closed position as the piston moves downwardly in the barrel of the pump.

Another object of the invention is to provide a standing valve for a grease dispenser having a pump including a vertically disposed cylinder having its lower portion formed With inlets at its lower end and above the inlets being. cut to form tongues which are bent inwardly to provide supports for the standing valve and, when bent,

inwardly, provide the cylinder with additional inlet openings under the standing valve.

Another object of the invention is to provide the pump with a standing valve consisting of a leather disc resting on the inturned tongues and,

held in place by a key which extends diametrically through the cylinder. against under faces, of the tongues with end portions passing through,

other circumferentially of the cylinder and" are tapered upwardly. Tongues H]; triangular in" certain of the openings formed by the tongues and its intermediate portion passing through an. eye of a fastener mounted through the disc cen-- trally thereof.

Another object of the invention is to provide a standing valve for a grease dispenser having a.

pump which is simple in construction, efiicient in...

operation, and not liable to get out of order.

In the accompany drawing:

Fig. l is a view showing. the improved grease. dispenser partially in side elevation and partially in vertical section.

Fig.2 is a view on an enlarged scale, showing.

the lower portion of the pump in vertical sec tion with portions in elevation.

Fig. 3 is a View similar to Fig. 2, showing the( piston moving downwardly.

Fig. 4 is a sectional view taken transversely through the pump on the line 4-4.of Fig. 3.

Fig. 5 is a view taken transversely through the, pump on the line 55of Fig. 3, looking toward,

the under face of the piston.

Fig. 6 is a View similar to Fig. 3, showing the piston moving upwardly.

Fig. 7 is a sectional View taken vertically through the lower end portion of the pump on.

the line 1-1 of Fig. 6.

The container I may be formed of sheet metal;

ing ;3 bordered by; an upstanding flange 4 so that a tight joint may be formed about a pump cylinder i'rwhich extends vertically in the container with its lower. end resting'on'the bottom' 6 0f the' container and'its upper portion protrudingrfrom thecontainer. A: spout 1' extends laterally fromthe upper end of" the cylinder and-is of" such" length that its outer end; which is normally" closed by, a removable cap 8, project's-beyond: the container. I

The lower end .of the cylinder is cut to form inlet openings 9 which are spaced from each shape, are struck from the cylinder above the inlet openings Sand are bent inwardly to form supports .Which are disposed radially of the cylinder and taper toward the center'oi the cylinder; as shown in Fig. 4. When the tongues are bent inwardly, auxiliary inlet openings H are formed. inthe. cylinder, said openings being located above the openings 9' in staggeredrelation-and tapered i downwardly with their lowerportionsdisposed" between upper portions of theopenings iii Since the lowerend portion of thecylinder is provided" withupper and lower rows of inlet openings, the; grease may. easily flow intothe cylinder below the standing. valve. l2 whichis supported byfthe tongues I 0. r

The standing valve consists of a disc l3"fo.rm'ed" of leather or other suitable pliable material'an'd is.of such diameter that it fits snugly within th'e cylinderand normally rests flatupon'uppjer faces of the tongues ll]. An opening I4" is formed'j through the disc, centrally thereof, andthroughv this'openingarepassed the prongs it of a. clip] I6 .formed similar to an eye bolt and firmly held in place when its prongs are spread and depressed for clamping engagement with the upper surface of-the-disc. Akey. IT passes through the eyeof the clip. lfidiametricallyof the. cylinder. 5 with its end portions passingthroug-h diametri-,v cally opposed ones of the openings. withits head IB disposedexternally of .the cylinderand an end portion of one of its arms bent, as .shown at [9, in Fig. 4, to hold the disc in place- Since the lower end of the cylinder or barrel 5 is formed withupper and lower. rows of, inlet. openin s, greasemay easily flow; into the barrel under. the standing. valve and since; the tongues ID. are spaced from each other, the grease may be drawn upwardly into :the barrel when-the disc is. flexed.- upwardly, as shown in-Figs. 6 and "7;

Inorder-that thegrease maybe drawn into the cylinderand, then carriedupwardl'y therein for discharge through the spout- 1,- there has beenprovided a piston 20'carried by'a piston rod'12'l.

This piston rod extends vertically in the cylinder or barrel-5i withits upper end passingthrough a packing gland 22 and providedwith-a 'head or button 23 by meansof which the-piston is to begrasped and reciprocated' vertically duriz-i-ge op;--

. ardly through.

received in the barrel and a bridge 26 extending diametrically across the ring and formed with a central opening through which-the piston rod passes. Securing nuts 21 and washers 28 are ap-' plied to the threaded lower end portion 29 of the piston rod above and below the disc and the spider and when the nuts are tightened the disc and spider will be gripped between them and firmly held in place to move with the pistonrod. Portions of the marginal ring of the spider are crimpedinwardly to provide inwardly projecting extensions 30 which assist in supporting the disc and also form openings or recesses 3i spaced from each other circumferentially of the spider so that grease may pass the spider at these points as well as flow through the spider during downward movement of the piston.

During downward movement of the piston, the pliable disc is flexed upwardly, as shown in Fig. 3, so that the piston passes freely through the grease to its lowered position and, during this downward movement of the piston,the disc E3 of the standing valve rests on the tongues In in closed position. As the piston rod is drawn upwardlythe disc 24 assumes the closed position in which it rests on the spider and grease above the piston or working valve, will be carried upwardly and discharged through the spout 1, another charge of grease being drawn inwardly through the openings 9 and H to fill the portion of the cylinder or barrel under the upwardly moving piston or working valve. The inwardly moving grease flexes the disc l3 upwardly to open position, as shown in Figs. 3, 6 and 7, and the lower portion of the cylinder will be quickly filled with grease which is trapped in the cylinder under the piston as the disc l3 of the standing valve resumes its closed position. By repeatedly moving the piston rod upwardly and then downwardly in the cyl inder, grease may be discharged through the spout 1 until a suflicient quantity has been discharged and the piston rod brought to a stop in its lowered position. A large disc 32, formed of wood or other suitable material, surrounds the cylinder and floats upon the upper surface of the grease where it serves as a shield for the grease and also as a weight for urging the grease downwardly and assisting flow of grease into the lower end of the cylinder during upward movement of the piston.

Having thus described the invention, claimed is:

1. In a device of the character described, a cylinder having its lower end formed with openings tapered upwardly and constituting inlets, tongues struck from the cylinder above the openings, the tongues being tapered toward their lower ends and bent inwardly to provide inwardly extending supporting tongues and auxiliary inlet openings tapered downwardly and located in staggered relation to the first inlets with their lower portions disposed between upper portions of the first inlets, a pliable disc normally resting on said tongues within the cylinder in closing relation to spaces between the tongues and adapted to be flexed upwardly away from the tongues to an open position, an eye having arms extending up the center of said disc, and a key passing through said eye with end portions what is passing through certain of the auxiliary inlet openings.

2. In a device of the character described, a cylinder having its lower end formed with inlets and above the inlets having tongues struck from its walls, the tongues being disposed in staggered relation to the inlets and attached at their upper ends and free at their lower ends and bent inwardly to provide inwardly extending supporting tongues and auxiliary inlet openings having their lower ends between upper ends of the first inlets, a disc of pliable material resting on said tongues within the cylinder for closing spaces between the tongues and adapted to be flexed upwardly away from the tongues to an open position, an eye carried by said disc and extending downwardly between free ends of the tongues, and a fastener passing through the eye diametrically of the cylinder with end portions passing through certain of the auxiliary inlets.

3. In a device of the character described, a cylinder formed with main inlets at its lower end spaced from each other circumferentially of the cylinder, tongues struck from the wall of the cylinder above the main inlets and bent inwardly to provide inwardly extending supporting tongues and auxiliary inlets spaced from each other circumferentially of the cylinder, a pliable disc within the cylinder resting on said tongues and constituting a closure for spaces between the tongues adapted to be flexed upwardly away from the tongues to an open position, a depending eye carried by said disc, a fastener passing through said eye and having end portions passing through certain of the auxiliary inlets.

4. In a device of the character described, a cylinder formed with main inlets at its lower end spaced from each other circumferentially of the cylinder and auxiliary inlets above the main inlets spaced from each other circumferentially of the cylinder, tongues extending inwardly of the cylinder from the wall thereof at upper ends of the auxiliary inlets, a pliable disc resting on said tongues for closing spaces between the tongues and adapted to be flexed upwardly away from the tongues to an open position, a fastener con- .nected with the central portion of said disc and extending diametrically of the cylinder under the tongues with its end portions passing through certain of the auxiliary inlets.

5. In a device of the character described, a cylinder formed with inlets in its lower portion spaced from each other circumferentially of the cylinder, tongues extending inwardly from the 'wall of the cylinder at upper ends of the inlets, a pliable disc resting on said tongues for closing spaces between the tongues and adapted to be flexed upwardly to open position, and a fastener connected with the central portion of the disc and extending transversely of the cylinder under the tongues and through certain of the inlets to hold the disc in place.

6. In a device of the character described, a cylinder, tongues struck from the wall of the cylinder and bent inwardly at their upper ends to provide inlets spaced from each other circumferentially of the cylinder and constituting supporting means at upper ends of the inlets, a closure resting upon said tongues for normally closing spaces between the tongues and having a portion movable to open position, a depending eye at the center of said disc, and a fastener for the closure under the tongues passing through the eye and through certain of said inlets.

' SAMUEL J. GOLDWATER. 

